If both variables have a normal distribution,you should use the Spearman rank correlation coefficient to look for relationships,rather than the Pearson correlation coefficient.

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The Spearman rank correlation coefficient is used when one or both variables are not normally distributed or when there is a non-linear relationship between the variables. The Pearson correlation coefficient is appropriate when both variables have a normal distribution and there is a linear relationship between the variables.

If Both Variables Have a Normal Distribution,you Should Use the Spearman